Military & Aerospace

Market Segment Discussion
Military and aerospace magnet requirements are often more stringent than consumer, automotive, industrial and similar applications because of the harsh environment to which the products are subjected such as extreme low and high temperatures, corrosive environment, vibration, radiation, vacuum and high pressures, etc.

Magnetic products used in military and aerospace applications are often expected to perform flawlessly for extended periods and with little or no maintenance.

Applications that are somewhat unique to this market segment:

Wave guides for radar

Magnetic bearings

Drive Transmission chip collectors

Wave guides for Microwave transmission

Positioning motors, e.g. for aircraft flaps

EMI/RFI shielding

OTHER USEFUL LINKS Products:

Precision Magnetic Assemblies

Permanent Magnets

Precision rolled alloy strip and foil

Technical Assistance:

Application Information

Selecting permanent magnet materials

Contact the Magnetics Technology Center

Getting in touch with us:

Applications Engineering

Whether your company has sophisticated in-house magnetics design capabilities or a more modest facility, our Applications Engineers are ready to support your efforts through the entire product life cycle including:

• Conceptualization
• Initial design
• Prototyping
• Design optimization
• Pre-Production trials
• Validation testing support
• Production issues
• Cost reduction activities
• Next generation designs

Additional capabilities:
• Magnetic field mapping
• Magnetic properties testing

Design Assistance

Applications engineers at each of our manufacturing locations can assist you with your needs, such as.

Magnetic modeling: 2D, Radially symmetric, 3D, Temperature dependence
Design relationships to your Hall sensor and application Specifications
Complete analysis includes studying the effects of the operate and release point of the Hall sensors compard to the magnetic output waveform

Quadrature encoders
Switches and latches
Ratiometric / Linear Halls
Pulse counters

Complex holding force calculations
Insert and overmolding designs
Manufacturability analysis
Measurement capability to verify design

Application Example

When electric current travels in a wire under DC (direct current) conditions, it is almost uniformly dispersed throughout the cross-section of the wire. Under AC (alternating current) conditions, and especially at higher frequencies, the current carrying electrons are located mostly on the skin of the conductor. At microwave frequencies, the current doesn't flow in a wire, it is "contained" in a waveguide. Permanent magnets and Electromagnets are used to focus, amplify and guide the microwaves.

Radar is just one device that utilizes high frequency radio waves that require waveguides as discussed above. The "dish" on the back of the airplane illustrated here carries the transmitting and receiving antennas for the radar system.

The second illustration is a microwave relay tower with several diffent antenna types visible. Transmission of the microwave signal to and from the antennas is by waveguide.